January 8, 2021
Description
WiFi controlled power strip by craigj is licensed under the Creative Commons - Attribution license.
http://creativecommons.org/licenses/by/3.0/
This is a 3D printed case for the original Sonoff WiFi switch, an 3 prong electrical outlet & an old computer power cord.
The only modification to the model was a larger cable hole.
Cost for each strip was under $10
WARNING: This project involves voltages which can cause injury or even death. You should not attempt this project If you are not experienced in working with household A/C voltage. NO liability is assumed, proceed at your own risk.
NOTICE: The Sonoff module is rated for 10 Amps
Sonoff monification: The green connection blocks from the Sonoff are not well attached so it is best to desolder them and toss them away.
ATX Power cord modification: Cut off the end that typically plugs into the powersupply, strip wires so that the ground can connect over the top of the sonoff module to the electrical outlet, white and black will be shorter.
Use the extra length of wire to attach to screws on the outlet and then prepare to solder all connections.
NOTE: Make sure that you get the polarity correct.
The outermost (unbroken) solder line on the underside of the board is NEUTRAL.
This trace should be connected to the wires leading to the 'fat' prong on the plug end and the SILVER (not gold) screw on your outlet.
Solder all of the connections (4 in total) to the thick traces on the underside of the Sonoff board to ensure good solid connections.
The retainer sits on top of the middle post so that it clamps down on the end of the Sonoff board when you screw in the outlet.
For a strain relief I used a ziptie tight on the cord inside housing.
License:
Creative Commons - Attribution
j3dcnc
